Matching-machine for knife-handles.



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NITED STATES Patented June 27, 1905.

PATENT OFFICE.

MATCHING-MACHINE FOR KNIFE-HANDLES.

SPECIFICATION forming pari: of Letters Patent No. 793,094, dated June 2'7, 1905. Application filed October 24, 1904. Serial No. 229,750.

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Be it known that LEDwAnD Pnmnosn, a citi- '/.en of the United States, residing at Camillus, in the county of Onondaga and State of New York, have invented certain new and useful Improvements in Matcl1ing'-l\lacliines for Knife-Handles, of which the following is a specification, such as will enable those skilled in the art to which it appertains to make and use the same.

The object of this invention is to provide a mechanical matching-machine to be used in the fitting' of the coverings for kni fe-handles-- as, for instance, the horn covering` of a pocketkni'fe--inounted between the cap and the bolster, which are secured on the knife-scale in the usual manner, a further object being' to provide a mechanical device of this class whereby the covering for any particular knifehandle is automatically fitted to the portion of the handle upon which it is desired to mount the same, said device adapting itself automatically to the increased or decreased distance between the cap and bolster; a still further object being to provide a device of this class which is simple in construction and operation, is capable of comparatively g'reat variations in the sizes of said coverings, and is very inexpensive.

Knife coverings have heretofore been trimmed at the ends thereof by a workman holding' the same against a grinding-wheel, and when one end is so ground to lit the bolster against which it is to rest on the knifehandle the other end is ground and fitted to engage the cap at the other end of said knife, and this operation consumes considerable time arnlrequires a skilled workman; and my invention is particularly designed to permit the accurate trimming and littingof said coverings by an unskilled person, such as a boy or girl, and whereby a large number of said coverings may be so fitted ina comparatively short time.

The invention is fully disclosed in the followingspecitication, of which the accompanying drawings form a part, in which the separate parts of my improvement are designated by suitable reference characters in each of the views, and in which- Figure l is a plan view of my matchingmachine with the parts in whatmay be called their initial positions; Fig. 2, a similar view thereof and showing the parts in linal position; Fig. 3, a longitudinal section thereof on the line 3 3 of Fig. 2; Fig. a, a transverse section thereof on the line i -l of Fig. l, and Fig. a view of a knife-scale with the usual cap and bolster thereon.

[n the drawings forming part of this speci- [ication ,l have shown at fr a support Afor my matching-machine constructed in any desired manner and placed adjacent to a grindingwheel fr, and in the construction of my machine ,I provide a base-plate provided with a longiturilinal recess or channel b2, and centrally arranged in said channel /f is a slot or recess l1, in which is slidably mounted a fiat bar c, and the base-plate is provided with a covering at the bottom thereof for said slot 7),

The bar f; is provided .for a portion of its length with a raised member of, which isadapted to slide in a slotf/ in a carrier d, said carrier being provided at its outer end with an enlarged recess d, which is connected with the slot I and at its other end with a recess r/, provided with a covering' (Z5 fora portion of the length of said recess al", said covering being' preferably higher than the surface of the carrier J2, as plainly shown in Fig. 3, and the carrier d is adapted to slide in the recess r'f" of the base-plate being held therein by means of cleats d", secured to the base-plate and said carrier is also provided with a lingerf/T at the outer end thereof and the reason Vfor which will be hereinafter explained.

.lhe bar c is provided with an adjustable handle c at the end adjacent to the operator or at the end opposite the grinding-wheel af, said handle c being adapted to be secured in any desired position to the bar c by means of a screw c or in any other suitable manner, and when said handle c is so secured the bar o may be moved thereby in the slot of the base-plate and the slot or recess d in the carrier d", and when it has reached the limit of its movement in said slot (Z of the carrier Z2 said carrier is moved thereby, as will be readily understood.

In Figs. I, 2, and 3 of the drawings I have indicated at e a covering for a pocket-knife handle, which is placed in the recess Z22 of the base-plate?) and the end of which rests against the outer end of the carrier (Z2, and when said carrier is moved outwardly the covering e is also moved until it reaches the grinding-wheel a2, at which time the outer end of said covering e is ground or cut at a slight angle, as shown in Fig. 3, said angle extending downwardly and inwardly, and is also V cut in a slightly-curved form, according to the diameter of the grinding-wheel a2, the object of which is to insure a perfect het on its surface with the bolster of the knife-scale', which is frequently prevented by a roughness or obstructionon the bottom of said bolster;` but by cutting said covering at a slight anglea perfect fit is assured.

In Fig. 5 of the drawings I have shown a knife-scale f, which is generally composed of brass and upon one end of which is mounted a cap f2 and on the other end a bolster f3, and in practice either the bolster f3 or the cap f2 is inserted into the recess Z4 of the carrier (Z2, as plainly shown in Fig. 3, and is held therein by the covering dthereof, and the outer cap f2 or bolster f 3, as the case may be, is then placed in the recess cl3, said recess being large enough to receive the caps or bolsters of any knife-scale for which my matching-machine is adapted, and when so placed therein the end c5 of the bar c is in its inmost position, as shown 1n Fig. l, and the handle c3, bar c, and carrier cl2 are all 1n the initial position shown in said figure, and when in` this position the untrimmed covering e is placed in the position shown in Fig. l, andv thel iinger Z7 serves to holdv said covering@V against movement while in this position, as such movement would result from the curved edges of the said covering e, and because o f thefinger Z7 the outer end of the covering e may be squarely trimmed, as will be seen. If the space between the cap f2 and the bolster f3 be slightly greater than usual and the bolster f3 when placed in position, as shown in Fig. 3, restsfagainst the outer edge IAS of the recess di, the inner edge of the cap f2 will not rest against the inner edged9 of the recess CZ, because of the excess length, and ifv the handle 03 be at this time movedthe outer end c5 of the bar c is first moved against the inner edge of the cap f2 of the scale v 70,

this movement of the bar independent of the carrier Z2 being greater or less, according to the space between the cap f2 and the bolster f3, and this movement may be described as' lost' motion, as its only result is to engage the end c of the bar c with the head f2; but the eXtreme movement of the bar c being limited by the position of the handle 0*, which 4in its forward position bears against the base-plate b, and-the slight movement ofthe bar c having already occurred to engage the cap f2 the scribed.

further movement of the handle c3 is thereby curtailed correspondingly, and when the handlec3 is moved after thev 'end 05l engages the cap f2 the carrier Z2`is movedthereby, as will be understood, said carrier also moving the covering e against the grinding-wheel a2.

In practice the covering e and the parts of my matching-machine are placed in the position shown in Fig. I, at which time the scale j is` placed in position, as shown in Figs. 2 and 3, and the handle o3 isV moved forwardly until the outer end of the covering e comes in contact with the grinding-wheel a2, and this end of the covering e is ground to fit against the bolster or cap of the scale, after which the covering e is turned end for endand the parts returned, be the. neeitienf Shown. in Eig-'1; and when the. handle@3 is again mloved outwardly the bar c moves a short distance to engage the @an f2, neither the earner @Z2 nel @ne envien ine e having been eifeetferljbir this inerernent end bhe lienfllefn3 ie lienfre'ed fnrwernlli 1.111- til the covering e bears against thegrilndingwheel fand isA held against the 'sarnefuntil the end thereof` is ground sufliciently to permit the handle c3 striking against thefezldA of the bese-plete A et Wliieli time'. the naitsfnrelwitli: drawn Vto the positionn'SvhQWn in4 1 the Seele f reineveel. freni the eennien andilienevf- @Pills e iS rendir fQr'mOliUing nnfsaicl seele, ellis Operation inenting 'n.neifee iin et eeen, end of said scale'for, the Vreason hereinbefore explained, and the lest nietenef the needle 03 permitting" lessened eentinnefd, @Weins/nt thereof the said covering hasnot beenground away as much., as though therehad been less 01 ne leenieiien, and tiliie` ineieinenil Off the bar 0 independent ef. theCarrier cl2 regnletee the length of the covering,as will bereadily understood.

Although I have` shown maChing-machine adapted' for use in connectionlwith;knifesc'ales having rounded and holsters, it will. be evidentl'that theA same'maybe.,adapted for use in connection withv scalesA having caps or bolsters ofany s apeor with scalespriivided only with afennet. ene end tliereef, anni. venir' One other elienseefin 'endfrnn'giifinatiene'- ef thev construction herein shown andde'scribed, may be mede in Offler tendent 'my niatpliinsfrnn chine for use in connectin'` with'any Vformfoff. knife-scale, and themachine may bemounted in any suitablemanner, atany'suitable, angli-i, and permitting any suitable" movement of thel handle c3, and 'with' thisrfresjervation i kWhat I claim yas new, and desire tosecure by Letters Patent, is-

1 A. 'metliinelineehine fer. knife-handle coverings, comprising abase uponfwhicha cevering rests, a grinding devieeadjaeent to Seid bene e eenrfiei en1 Seidv beeeenflbeerne against lsaid knife-covering, means fonliiiV iti'ns the Inni/ement of, Seidl carrier anlsaid, knife-covering, substantiallyas shownaf d loc Q. Amatchingmachine orknife-coverings, comprising' a base upon which a knife-covering rests, a carrier slidably mounted on said base and bearing' against said lni't`e-covering, a bar in operative connection with said carrier and a handle adjustably mounted en said bar and limiting' the movement thereof', substantially as shown and described.

3. A machine for matching' knife-coverings to knife-scales, comprising a base adapted to support one of said coverings, a carrier on said base and bearing against said covering', a bar in operative connection with said carrier, said carrier being' provided with recesses into which the cap and bolster of a knife-scale are adapted to pass, and means connected with said bar for moving said carrier and said knife-covering to a position whereby said covering is g'round to lit between said cap and said bolster of said scale, substantially as shown and described.

Jr. A machine for matching` knife-coverings to knife-scales, comprising' a base upon which one ot' said covering's is adapted to rest, a carrier slidably mounted on said base,'a handle in operative connection with said carrier and devices connected with said carrier whereby said knife-covering is moved a predetermined distance, substantially as shown and described.

5. A machine for ttting' knife-coverings t0 knife-scales, comprising a base upon which one of said knife-coverings is adapted to rest, a carrier slidably mounted on said base and bearing against said knife-covering', a handle in operative connection with said carrier, said carrier being adapted to receive said knit'escale` and means connected with said carrier for moving the same a greater or less distance according to thedistance between the cap and bolster on said knife-scale, substantially as shown and described.

6. A machine for fitting'knife-coverings to knife-scales between the caps or bolsters thereet', comprising a base upon which one of said knife-coverings is adapted to be moved, a carrier on said base, said carrier being' adapted to receive a knife-scale, a bar in operative connection with said carrier, a handle adjustably mounted thereon and limiting the forward movement of said bar, said bar and handle being capable et' movement independent of said carriera distance equal to the difference in length ot' the knife-scale between the cap and bolster thereof, and the length thereotl between a normal knife-scale, substantially as shown and described.

7. A machine for fitting knife-coverings to knife-scales between the caps or bolsters thereof, comprising' a base upon which one ot' said knife-coverings is adapted to be moved, a carrier on said bar, said carrier being' adapted to receive a knife-scale, a bar in operative connection with said carrier, a handle adjustably mounted thereon and limiting' the 'forward movement ot' said bar, said handle and said bar being' capable of movement independent et' said carrier, substantially as shown and described.

8. A machine for fitting' knife-coverings to knife-scales, comprising' a base upon which one et" said lolite-coverings is adapted to be moved,a carrierslidably mounted on said base, a bar movable in said base and carrier, and means for limiting' the movementof said bar, substantially as shown and described.

9. A machine for fitting knife-coverings to knife-scales comprising a base upon which one of said knife-coverings is adapted to be moved,a carrier slidably mounted on said base, a bar movable in said base and carrier, devices for limiting' the movement ot' said bar, said carrier beingr adapted to receive one ot' said knife-scales and means connected with said carrier and said knife-scale t'or permitting' independent n1ovementot'.'aid bar, substantially as shown and described.

10. A machine for litting knife-coverings to knife-scales, comprising a base'torsupporting one ot' said knife-coverings, a device for receiving' one of said knife-scales and in operation with said knife-covering and means for moving' said scaleereceiving' device, the distance ot' said movement being' determined by the length of said scale, su bstantially as shown and described.

ln testimony that I claim the foregoing as my invention I have signed my name, in presence of the subscribing witnesses, this 17th day of October, 190i.

ED\\'ARD PRiMROSE.

\Vitnesses:

EARL E. ELLIS, Cona L. ELLIs. 

